Upper portion of a bottle



FIG. 1 is a perspective view of an upper portion of a bottle, embodying my new design;

FIG. 2 is a top view thereof; and,

FIG. 3 is an elevational view thereof.

The broken line showing of the top and bottom portions of a bottle is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an upper portion of a bottle, as shown and described. 